He is an encyclopedia author specializing in the field of chemical engineering. He has in-depth research and understanding of various plastic materials, especially for polyethylene, a common and important polymer compound, which is familiar with its properties, characteristics and application range - from basic knowledge to advanced application skills can benefit people!
Your check engine light coming on after an oil change could be due to a few reasons. First, it might be as straightforward as the oil cap or dipstick not being properly secured, causing the engine to detect a problem. Second, if the oil used is of the wrong viscosity or if the oil level is too high or too low, it can trigger the sensor. Additionally, any accidental disconnection or damage to the engine's sensors during the oil change can activate the light. Ensure to recheck these components or consult a mechanic who can run a diagnostic to pinpoint the exact issue. Sometimes, the light might just need a reset after maintenance, but it's crucial to address any potential underlying issues to prevent long-term damage to your engine.